Use any decoy you want. Turkeys are one of the dumbest critters on the face of the earth. Think about it, they have a brain the size of a walnut! (I'm sure that will start a debate)!
Problem with those buggers is they can see the slightest movement from three counties away and they get wary the longer they live!
Buy good camo, learn how to "woods call", (no need to be Matt Van Cise), find a good set up, SIT STILL and shoot you shotgun like a rifle.
Trust me, you'll fill your scrap book with pictures.